Patent application number | Description | Published |
20100029980 | Direct and selective production of ethyl acetate from acetic acid utilizing a bimetal supported catalyst - A process for the selective production of ethyl acetate by vapor phase reaction of acetic acid over a hydrogenating catalyst composition to form ethyl acetate is disclosed and claimed. In an embodiment of this invention reaction of acetic acid and hydrogen over platinum and copper supported on silica selectively produces ethyl acetate in a vapor phase at a temperature of about 250° C. | 02-04-2010 |
20100125148 | Integrated process for the production of vinyl acetate from acetic acid via ethylene - This invention provides an integrated two stage economical process for the production of vinyl acetate monomer (VAM) from acetic acid in the vapor phase. First, acetic acid is selectively hydrogenated over a hydrogenating catalyst composition to form ethylene either in a single reactor zone or in a dual rector zone wherein the intermediate hydrogenated products are either dehydrated and/or cracked to form ethylene. In a subsequent second stage so formed ethylene is reacted with molecular oxygen and acetic acid over a suitable catalyst to form VAM. In an embodiment of this invention reaction of acetic acid and hydrogen over a hydrogenation catalyst and subsequent reaction over a dehydration catalyst selectively produces ethylene, which is further mixed with acetic acid and molecular oxygen and reacted over a supported palladium/gold/potassium catalyst | 05-20-2010 |
20100168467 | Integrated process for the production of viny acetate from acetic acid via ethy acetate - This invention provides an integrated three step economical process for the production of vinyl acetate monomer (VAM) from acetic acid in the vapor phase. First, acetic acid is selectively hydrogenated over a hydrogenating catalyst composition to form ethyl acetate which is cracked to form ethylene and acetic acid in the second step and in a subsequent step so formed ethylene and acetic acid is reacted with molecular oxygen over a suitable catalyst to form VAM. In an embodiment of this invention reaction of acetic acid and hydrogen over platinum and copper supported on silica selectively produces ethyl acetate in a vapor phase at a temperature of about 250° C., which is cracked over a NAFION catalyst to form ethylene and acetic acid at a temperature of about 185° C., which is mixed with molecular oxygen and reacted over a palladium/gold/potassium catalyst supported on titania to form VAM at a temperature of about 150° C. to 170° C. | 07-01-2010 |
20110071312 | INTEGRATED PROCESS FOR THE PRODUCTION OF VINYL ACETATE FROM ACETIC ACID VIA ETHYLENE - This invention provides an integrated two stage economical process for the production of vinyl acetate monomer (VAM) from acetic acid in the vapor phase. First, acetic acid is selectively hydrogenated over a hydrogenating catalyst composition to form ethylene either in a single reactor zone or in a dual rector zone wherein the intermediate hydrogenated products are either dehydrated and/or cracked to form ethylene. In a subsequent second stage so formed ethylene is reacted with molecular oxygen and acetic acid over a suitable catalyst to form VAM. In an embodiment of this invention reaction of acetic acid and hydrogen over a hydrogenation catalyst and subsequent reaction over a dehydration catalyst selectively produces ethylene, which is further mixed with acetic acid and molecular oxygen and reacted over a supported palladium/gold/potassium catalyst. | 03-24-2011 |
Patent application number | Description | Published |
20100219937 | Instant Messaging Sound Control - Controlling the volume of an audible alert associated with an instant messaging communications session includes rendering, on a first instant messaging user system, an instant messaging application user interface for an instant messaging communications session involving at least a first instant messaging user and a second instant messaging user, receiving notification of an event related to the instant messaging communications session, determining a characteristic of the event, accessing an audible alert to be rendered to signal existence of the event, adjusting based upon the determined characteristic of the event a volume of the audible alert corresponding to the event, and rendering the audible alert to signal existence of the event. | 09-02-2010 |
20130067498 | Instant Messaging Sound Control - Controlling the volume of an audible alert associated with an instant messaging communications session includes rendering, on a first instant messaging user system, an instant messaging application user interface for an instant messaging communications session involving at least a first instant messaging user and a second instant messaging user, receiving notification of an event related to the instant messaging communications session, determining a characteristic of the event, accessing an audible alert to be rendered to signal existence of the event, adjusting based upon the determined characteristic of the event a volume of the audible alert corresponding to the event, and rendering the audible alert to signal existence of the event. | 03-14-2013 |
20130067499 | Instant Messaging Sound Control - Controlling the volume of an audible alert associated with an instant messaging communications session includes rendering, on a first instant messaging user system, an instant messaging application user interface for an instant messaging communications session involving at least a first instant messaging user and a second instant messaging user, receiving notification of an event related to the instant messaging communications session, determining a characteristic of the event, accessing an audible alert to be rendered to signal existence of the event, adjusting based upon the determined characteristic of the event a volume of the audible alert corresponding to the event, and rendering the audible alert to signal existence of the event. | 03-14-2013 |
20130254316 | OFFLINE AWAY MESSAGES - A computer program or method provides away messages from a first user to other users of a communications system, where the first user has grouped the other users into two or more groups. An interface is provided to the first user that displays representations of the other users in a manner that identifies how the first user has grouped the other users into the groups. The first user is able to select a selected group from the groups using the interface. The first user also is able to set a group away message for the selected group using the interface. The group away message is sent to a second user that has been grouped in the selected group when the second user attempts to communicate with the first user using the communications system and the first user is offline. | 09-26-2013 |